我有两个元组
("string1","string2","string3","string4","string5","string6","string7")
和
("another string1","another string2",3,None,"another string5",6,7)
我想做这样的事情:
("string1another string1","string2another string2","string33","string4","string5another string5","string66","string77").
结果也可以:
("string1another string1","string2another string2","string33","string4None","string5another string5","string66","string77")
但是由于我是Python的新手,所以我不确定该怎么做.合并两个元组的最佳方法是什么?
解决方法:
使用zip和一个生成器表达式:
>>> t1=("string1","string2","string3","string4","string5","string6","string7")
>>> t2=("another string1","another string2",3,None,"another string5",6,7)
第一预期输出:
>>> tuple("{0}{1}".format(x if x is not None else "" ,
y if y is not None else "") for x,y in zip(t1,t2))
('string1another string1', 'string2another string2', 'string33', 'string4', 'string5another string5', 'string66', 'string77')
第二预期输出:
>>> tuple("{0}{1}".format(x,y) for x,y in zip(t1,t2)) #tuple comverts LC to tuple
('string1another string1', 'string2another string2', 'string33', 'string4None', 'string5another string5', 'string66', 'string77')
使用此ternary expression处理None值:
>>> x = "foo"
>>> x if x is not None else ""
'foo'
>>> x = None
>>> x if x is not None else ""
''